Thank you for your interest in becoming a participating provider within the Western Health Advantage network. All providers are delegated through Western Health's contracted medical groups, IPAs, hospital system and partners.
WHA Service Area
- Sacramento County
- El Dorado County
- Marin County
- Napa County
- Placer County
- Solano County
- Sonoma County
- Yolo County
To search by zip code, use our service area search.
Medical Group/IPA Professional Services by County
Sacramento, El Dorado, and Placer County
- Hill Physicians
- Mercy Medical Group
Yolo County
- Woodland Clinic Medical Group
Solano County
- NorthBay Medical Group
Marin, Napa, and Sonoma County
- Meritage Medical Network
- Providence (formerly St. Joseph Health)
Hospital Base Services (including DME and ambulance)
Sacramento, El Dorado, and Placer County
- Dignity Health
Solano County
- NorthBay Medical Center
- NorthBay VacaValley Hospital
Marin County
- Marin General Hospital
- Providence (formerly St. Joseph Health)
Sonoma County
- Healdsburg District Hospital
- Petaluma Valley Hospital
- Santa Rosa Memorial Hospital
- Sonoma Valley Hospital
- Sonoma West Medical Center
Napa County
- Queen of the Valley Medical Center
WHA's Partners in Care
Chiropractic and Acupuncture Services
- Landmark Healthplan of California
Vision Services
- MESVision
Dental Services
- Delta Dental
Behavioral Health and Chemical Dependency
- Magellan Behavioral Health
Learn more about WHA’s partners.
Provider Tools
Need help?
We love to help.
Please don’t hesitate to call Provider Relations at 916.614-6096 or email ProviderRelations@westernhealth.com.